/* 基础样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f8f9fa;
}

/* 导航栏 */
header {
    background-color: #4a69bd;
    color: white;
    padding: 1rem 5%;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.5rem;
    font-weight: bold;
}

.nav-links {
    display: flex;
    list-style: none;
}

.nav-links li {
    margin-left: 2rem;
}

.nav-links a {
    color: white;
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
}

.nav-links a:hover, .nav-links a.active {
    color: #f8c291;
}

/* 主要内容区域 */
main {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem 1rem;
}

.hero {
    text-align: center;
    padding: 3rem 1rem;
    background-color: #dff9fb;
    border-radius: 8px;
    margin-bottom: 2rem;
}

.hero h1 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    color: #2c3e50;
}

/* API卡片区域 */
.api-container {
    margin-bottom: 3rem;
}

.api-container h2 {
    text-align: center;
    margin-bottom: 2rem;
    color: #2c3e50;
}

.api-cards {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1.5rem;
}

.api-card {
    background-color: white;
    border-radius: 8px;
    box-shadow: 0 3px 10px rgba(0,0,0,0.1);
    padding: 1.5rem;
    transition: transform 0.3s ease;
}

.api-card:hover {
    transform: translateY(-5px);
}

.api-card h3 {
    color: #2c3e50;
    margin-bottom: 0.5rem;
}

.api-card .category {
    display: inline-block;
    background-color: #e17055;
    color: white;
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.8rem;
    margin-bottom: 1rem;
}

.api-card .description {
    color: #7f8c8d;
    margin-bottom: 1rem;
}

.api-card .url {
    color: #0984e3;
    word-break: break-all;
}

/* 关于部分 */
.about-section {
    background-color: white;
    padding: 2rem;
    border-radius: 8px;
    box-shadow: 0 3px 10px rgba(0,0,0,0.1);
}

/* 页脚 */
footer {
    text-align: center;
    padding: 2rem;
    background-color: #2c3e50;
    color: white;
    margin-top: 2rem;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .nav-links {
        display: none;
    }

    .hero h1 {
        font-size: 2rem;
    }
}